The Linux desktop has come a long way. It's a fully usable, stable, and secure operating system that can be used quite easily by the masses. Not too long ago, Sun figured they could do the same by starting Project Indiana, which is supposed to deliver a complete distribution of OpenSolaris in a manner similar to GNU/Linux. After using the latest version for a while, I'm wondering: why?

Well it is true. Fact is that 2008.11 contains numerous critical security vulnerabilities e.g. in OpenSSL, ipfilter, or Firefox, all of which have been fixed in the /support and /dev branch only.
The 2009.06 release e.g. contains a Firefox 3.1beta with critical vulnerabilities, a fix is available from /support or /dev only.
For more examples of unfixed security vulnerabilities in both the 2008.11 and 2009.06 release branches check http://blogs.sun.com/security/category/alerts .
Also note their change in policy on their website which I have previously mentioned in http://www.osnews.com/thread?366658 .